Modelling of Diesel Particulate Filters
Athanasios Konstandopoulos, APTL, CERTH/CPERI
Widespread market application of Diesel Particulate Filters (DPFs) has been accompanied by the introduction of new filter materials and configurations in terms of cell density, wall thickness, pore size, porosity, catalyst coatings etc. Given this state-of-affairs materials development, DPF design, system integration, regeneration control strategy optimization and ash aging assessment, based on a traditional design of experiments approach becomes very time consuming and costly, due to the high number of tests required. This provides a priviledged window of opportunity for the application of simulation tools. DPF behavior depends strongly on the coupling of phenomena occurring over widely disparate spatial and temporal scales and the simulation approach must recognize and exploit these facts. In this presentation we provide a review of our work on DPF simulation.